Journal Published Online: 01 July 1994
Volume 22, Issue 4

Numerical Assessment of the Dynamic Tension Test Using the Split Hopkinson Bar



An experimental and numerical analysis of tension tests in the Hopkinson bar is made to assess the suitability of this method to characterize materials in tensile conditions at strain rates about 1000/s. The stress and strain fields that appear in the specimen are analyzed by the finite element method. This mathematical simulation of the test allows a check of the hypotheses normally used in obtaining results: equilibrium situation and uniform strain distribution in the specimen. The simulation process also provides some criteria to design the experimental setup and the specimen geometry for the best agreement with the ideal situation. Finally, because of the usual assumption regarding the uniformity of the strain distribution in the specimen may not be valid, some corrections are suggested to obtain reliable material properties from direct test results in different situations.

Author Information

Rodríguez, J
Polytechnic University of Madrid, Ciudad Universitaria s/n, Madrid, Spain
Navarro, C
Carlos III University, Madrid, Spain
Sánchez-Gálvez, V
Polytechnic University of Madrid, Ciudad Universitaria s/n, Madrid, Spain
Pages: 8
Price: $25.00
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Stock #: JTE11842J
ISSN: 0090-3973
DOI: 10.1520/JTE11842J